Astrotech director granted 1,055 restricted shares

Winn Charles Arch reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Winn Charles Arch reported acquisition or exercise transactions in this Form 4 filing.

Astrotech Corp director Winn Charles Arch received an equity award. On 2026-07-09 he was granted 1,055 shares of restricted common stock under the Astrotech Corporation 2021 Omnibus Equity Incentive Plan, which vested immediately. Following the grant he directly held 10,950 common shares, including 485 held in his IRA.

Insider Trade Summary

Grant/Award: 1,055 shares

Grant/Award 1 txn

Insider Winn Charles Arch

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F2, F1	1,055	$0.00	$0.00

Holdings After Transaction: Common Stock — 10,950 shares (Direct)

Footnotes (2)

1. F1. Includes 485 shares of common stock held in the reporting person's IRA.
2. F2. Represents shares of restricted stock granted to the Reporting Person pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan. 100% of the shares of restricted stock vested immediatelyon the grant date.

Key Figures

Restricted shares granted: 1,055 shares Grant price per share: $0.0000 per share Shares held after transaction: 10,950 shares +2 more

5 metrics

Restricted shares granted 1,055 shares Grant of restricted common stock to director on 2026-07-09

Grant price per share $0.0000 per share Reported transaction price for the 1,055-share restricted stock award

Shares held after transaction 10,950 shares Total direct common stock holdings following the grant to Winn Charles Arch

IRA-held shares 485 shares Portion of Winn Charles Arch's direct holdings held in his IRA

Transaction date 2026-07-09 Date the restricted stock award to Winn Charles Arch was granted

Key Terms

restricted stock, 2021 Omnibus Equity Incentive Plan, IRA

3 terms

restricted stock financial

"Represents shares of restricted stock granted to the Reporting Person"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

2021 Omnibus Equity Incentive Plan financial

"pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan"

IRA financial

"Includes 485 shares of common stock held in the reporting person's IRA."

An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Astrotech Corp (ASTC) report for Winn Charles Arch?

Astrotech Corp reported that director Winn Charles Arch received a grant of 1,055 shares of restricted common stock on 2026-07-09. The award was issued under the 2021 Omnibus Equity Incentive Plan and vested immediately, increasing his directly held common stock position.

How many Astrotech (ASTC) shares does Winn Charles Arch hold after this Form 4?

After the restricted stock grant, Winn Charles Arch directly holds 10,950 shares of Astrotech common stock. This total includes 485 shares held in his IRA, as noted in the filing footnotes, reflecting his updated direct ownership stake.

What are the vesting terms of Winn Charles Arch’s restricted stock award at ASTC?

The filing states that 100% of the 1,055 restricted shares vested immediately on the grant date. This means there is no remaining vesting schedule; the shares became fully vested and owned by Winn Charles Arch as of 2026-07-09.

Was Winn Charles Arch’s ASTC stock award made under a Rule 10b5-1 trading plan?

The document-level Rule 10b5-1 checkbox is unchecked, and the footnotes do not reference any trading plan. Together, this indicates the restricted stock grant was not reported as made under a Rule 10b5-1 plan or similar pre-arranged trading arrangement.

What was the price per share for Winn Charles Arch’s 1,055 ASTC restricted shares?

The reported transaction price per share is $0.0000, consistent with a compensation-related award rather than a market purchase. Winn Charles Arch therefore acquired 1,055 restricted shares at no cash cost as part of Astrotech’s equity incentive compensation.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/21/2026 - 04:40 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Winn Charles Arch

(Last) (First) (Middle)

1817 W. BRAKER LN, STE 400

(Street)

AUSTIN TEXAS 78758

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ASTROTECH Corp [ ASTC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/09/2026		A		1,055(2)	A	$0	10,950(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 485 shares of common stock held in the reporting person's IRA.

2. Represents shares of restricted stock granted to the Reporting Person pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan. 100% of the shares of restricted stock vested immediatelyon the grant date.

Remarks:

	/s/ Charles Winn	07/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)